Example usage for org.apache.commons.lang3.reflect ConstructorUtils invokeConstructor

Introduction

In this page you can find the example usage for org.apache.commons.lang3.reflect ConstructorUtils invokeConstructor.

Prototype

public static <T> T invokeConstructor(final Class<T> cls, Object... args) throws NoSuchMethodException,
        IllegalAccessException, InvocationTargetException, InstantiationException

Source Link

Document

Returns a new instance of the specified class inferring the right constructor from the types of the arguments.

This locates and calls a constructor.

Usage

From source file:pt.ua.tm.neji.context.ContextConfiguration.java

private static Module invokeModuleWithParams(final String moduleName,
        final Collection<Pair<String>> moduleParams, final Parser parser) throws ReflectiveOperationException {

    List<Class<?>> classes = new ArrayList<>();
    List<Object> objects = new ArrayList<>();

    for (Pair<String> pair : moduleParams) {

        Class paramClass = Class.forName(pair.getX());

        if (paramClass == Parser.class) {
            if (parser == null) {
                logger.warn(/*  w w  w .  j av a2s . c  o m*/
                        "Module that required a parser in constructor was skipped during ContextDescriptor fetching: no parser was provided.");
                continue;
            } else {
                objects.add(parser);
            }

        } else if (paramClass.isEnum()) {
            Enum paramEnum = Enum.valueOf(paramClass, pair.getY());
            objects.add(paramEnum);

        } else {
            objects.add(ConstructorUtils.invokeConstructor(paramClass, pair.getY()));

            if (Primitives.isWrapperType(paramClass)) {
                paramClass = Primitives.unwrap(paramClass);
            }
        }
        classes.add(paramClass);
    }

    return (Module) ConstructorUtils.invokeConstructor(Class.forName(moduleName), objects.toArray(),
            classes.toArray(new Class[classes.size()]));
}